One is a known problem but I can't figure out what wrong.
"Unexpected HTML response to PHP query. Be sure the site URL entered in the FTP upload dialog is correct, and PHP is configured correctly on your web server. Contact your hosting provider or website administrator about how to configure PHP support." ---> I honestly don't know what to do. I worked just fine few days ago.
I've made a burger menu with a composition widget. Everything worked just fine, until last Adobe Muse update. When you push the trigger, the Close button showing up and just close the target. No setting have changed. You can try it yourself at www.macmull-guitars.com on mobile. Try the menu.
When inspect home page: "Failed to load resource: the server responded with a status of 404 (Not Found)".